import requests


def download_file(url: str, local_filepath: str) -> None:
    """
    Download a file from a URL and save it locally.

    Args:
        url (str): The URL of the file to download.
        local_filename (str): The local path where the file will be saved.
    """
    with requests.get(url, stream=True) as response:
        response.raise_for_status()
        with open(local_filepath, 'wb') as file:
            for chunk in response.iter_content(chunk_size=8192):
                file.write(chunk)